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NOTE: Model 4530s shown below. Power button board appearance differs in model 4730s.
1. Position the top cover upside-down with the front toward you.
2. Remove the Phillips PM2.0×4.0 screw (1) that secures the board to the top cover.
3. Lift the board up at an angle (2), and then remove it from the top cover (3).
Reverse this procedure to install the power button board.
Component replacement procedures 75